CN1229210C - Method for prodcing reinforced thermoplastic resin composite, and melt kneading means - Google Patents

Method for prodcing reinforced thermoplastic resin composite, and melt kneading means Download PDF

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Publication number
CN1229210C
CN1229210C CNB001180266A CN00118026A CN1229210C CN 1229210 C CN1229210 C CN 1229210C CN B001180266 A CNB001180266 A CN B001180266A CN 00118026 A CN00118026 A CN 00118026A CN 1229210 C CN1229210 C CN 1229210C
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China
Prior art keywords
charging aperture
melt
machine barrel
kneaded
introducing port
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CN1277912A (en
Inventor
服部隆宏
武井洋
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JNC Corp
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Chisso Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
    • B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
    • B01F25/3141—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit with additional mixing means other than injector mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/72—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices
    • B01F27/724—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with a single helix closely surrounded by a casing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • B29C48/2886—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules of fibrous, filamentary or filling materials, e.g. thin fibrous reinforcements or fillers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/63—Screws having sections without mixing elements or threads, i.e. having cylinder shaped sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/04—Particle-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/29—Feeding the extrusion material to the extruder in liquid form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/297—Feeding the extrusion material to the extruder at several locations, e.g. using several hoppers or using a separate additive feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/16—Fillers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

A method for producing a reinforced thermoplastic resin composition in a stable manner for long periods of time, comprising providing a melt-kneading apparatus with a plurality of supply ports arranged in line with the direction, along which a molten resin flows, supplying a polyolefin resin, a solid modifier and a solid radical generator through a first supply port positioned on the most upstream side of the extruder; supplying a flake inorganic filler through a second supply port arranged at a position on the downstream side of the first supply port; supplying a fibrous reinforcing material through a third supply port arranged at a position on the downstream side of the second supply port; and supplying an unsaturated silane compound through a liquid-introducing port arranged at a position on the immediately downstream side of the first supply port and on the upstream side of the second supply port, to thus melt and knead these components. Also provided is a production apparatus for practicing the production method.

Description

Produce the method and the melt-kneaded device that strengthen the thermoplastic resin composition
The present invention relates to preparation strengthens thermoplastic resin (particularly vistanex) composition method and is applicable to the fusion of this method and the device of kneading material.More particularly; the present invention relates to a kind of improved technology; it can guarantee that base resin and the reinforcing material that is blended in the resin have strong compatibility; also relate to the actual solution of what is called " bridging plug " the phenomenon problem that when base resin, reinforcing material and additive fusion together and kneading, occurs, thereby make the stable operation in the long time continuously of melt-kneaded device.
With the moulding article of the enhancing thermoplastic resin that strengthens thermoplastic resin composition's [comprising inorganic reinforcement such as fiber glass reinforcement or inorganic laminal filter and thermoplastic resin (particularly vistanex)] preparation, select inorganic reinforcement to demonstrate various advantages by many-side.For example, the mechanical performance of moulding article such as intensity and rigidity can improve and can prevent the appearance of warpage effectively.Therefore, this enhancing thermoplastic resin composition has been widely used as parts and instrument, construction material and other material of parts, aircraft components and the ship components of producing vehicle such as automobile and various industrial machinery part, industrial equipment.
If aforementioned inorganic reinforcement and thermoplastic resin are directed to fusion and kneading in the melt-kneaded device in the production that strengthens molded resin, then described reinforcing material is easy to sneak into the charging aperture punishment class that causes in the base resin at material because of the rapid increase of molten resin viscosity and inorganic reinforcement, and this makes the screw rod etc. of melt-kneaded device be easy to abrasion again.In addition, therefore need further improvement arranged aspect the interface affinity between base resin and the inorganic reinforcement, in aspect the durability of the moulding article of for example using the enhancing resin combination (product of fusion and kneading) that produced to produce and its intensity and space of still having improvement, rigidity aspect at high temperature always.
The flat 4-25541 of the patent disclosure of Japanese laid-open (hereinafter being called " Japan Patent is open ") has proposed a kind of RPP resin combination as a measure that improves interface affinity between base resin and the inorganic reinforcement, and described RPP resin comprises by fusion and mediates the modified polypropene that obtains as the unmodified polypropylene of base resin, a kind of unsaturated acids, a kind of unsaturated silane compound and a kind of organic peroxide; With glass fibre and Powdered mica as inorganic reinforcement.It is said that this enhancing resin combination can improve base resin and be blended into interface affinity between the reinforcing material in the resin, and this resin combination can be used as the material that preparation has the excellent durability goods.
But, if in order to produce moulding article by this base resin and inorganic reinforcement are imported to extruder, the enhancing resin combination is produced in fusion and kneading like this, just produce a problem, mechanical strength and the rigidity of resulting exactly moulding article under hot conditions still remains to be improved, and disclosed technology can not be eliminated the problem of observed classification of aforementioned component fusion one time-out and screw rod abrasion at all in aforementioned patent is open.
On the other hand, Japan Patent discloses flat 5-96532 and has proposed a kind of method, it uses the extruder of the charging aperture of being furnished with three components of packing into, and may further comprise the steps: with first charging aperture by being positioned at the upstream extremity of extruder of polypropylene and organic peroxide, with inorganic laminal filter by being located at second charging aperture behind first charging aperture and glass fibre be fed to extruder by the 3rd charging aperture that is positioned at the downstream of extruder, thereby with these raw material fusion and kneading.It is said that this preparation method can stably prepare aforementioned resin, and do not have together problem such as in the classification at charging aperture place and also can reduce for example abrasion of extruder screw.
But, in the method for producing this enhancing resin combination, because need the interface affinity between base resin and the inorganic reinforcement further be improved, still need to the durability of the moulding article of this preparation of compositions with and at high temperature mechanical strength and rigidity do further improvement.
Consider the existing situation that strengthens the resin combination technology of producing, the inventor has investigated further in utilization to be furnished with in the extruder of three charging apertures fusion and to mediate raw-material method, and it may further comprise the steps: with first charging aperture by being positioned at the upstream extremity of extruder of acrylic resin, organic peroxide, unsaturated acids and organic silane compound, with inorganic laminal filter by being located at second charging aperture behind first charging aperture and fibre reinforced materials being fed to extruder by the 3rd charging aperture that is positioned at the downstream of extruder.As a result, the inventor has excellent durability according to producing the preceding method that strengthens resin combination, successfully having prepared with the enhancing polyolefine resin composition, does not follow the moulding article such as problems such as extruder screw abrasion substantially.
But method discussed above is same to exist " bridging plug " phenomenon that occurs through first charging aperture place of the melt-kneaded device of being everlasting, and the result makes described device can not continue the problem of operation steady in a long-term.
Therefore, the present invention relates to the improvement technology that a kind of solution is accompanied by the foregoing problems of prior art, therefore a target of the present invention provides a kind of method that strengthens the thermoplastic resin composition and melt-kneaded device that is applicable to this preparation method produced, described method comprises fusion and mediates and be used to prepare the raw material that strengthen molded resin, comprises vistanex, fibre reinforced materials and inorganic laminal filter.
More particularly, target of the present invention provides a kind of method and apparatus, it can guarantee to be included in high interface affinity between the base resin that strengthens among the thermoplastic resin composition and the reinforcing material, and but steady production can provide the enhancing thermoplastic resin composition of the thermoplastic resin molded article with for example good durability and the mechanical strength under the high temperature and rigidity, and is not accompanied by simultaneously such as so-called " bridging plug " phenomenon and long-term problems such as screw rod abrasion.
The inventor has carried out extensive studies, basically be not accompanied by the method and the process units of aforesaid drawbacks as thermoplastic resin basis manufacture of materials enhancing thermoplastic resin composition so that develop a kind of vistanex that uses, and therefore finished the present invention.
According to the present invention, the melt-kneaded device production that provides a kind of use to be furnished with a plurality of charging apertures that are arranged in rows along the molten resin moving direction strengthens thermoplastic resin composition's method, and it comprises the following steps:
Vistanex, solid modifier and solid-state free radical generating agent is reinforced by first charging aperture that is positioned at the upstream extremity of extruder;
Inorganic laminal filter is reinforced by second charging aperture that is positioned at first charging aperture downstream;
Fibre reinforced materials is reinforced by the 3rd charging aperture that is positioned at second charging aperture downstream; With
Unsaturated silane compound is reinforced by firm liquid introducing port at first charging aperture downstream and second charging aperture upstream side, and according to this with the component melts and the kneading that are added.
In the method for producing according to enhancing thermoplastic resin composition of the present invention, described inorganic laminal filter is preferably Powdered mica, and the fibre reinforced materials of front is preferably and is selected from least a of glass fibre and carbon fiber.
Comprise according to melt-kneaded device of the present invention:
Be used for fusion by the base resin of one side importing and the cylindrical machine barrel that simultaneously described resin is moved to opposite side;
Be used for fusion and the instrument of mediating the molten resin that holds at described machine barrel;
Embark on journey along the molten resin moving direction and to be arranged in first to the 3rd charging aperture that is used to import raw material on the machine barrel; With
Just in the first charging aperture downstream with at the liquid introducing port of the second charging aperture upstream side.
In according to melt-kneaded device of the present invention, its melt-kneaded instrument can be an extruder of being furnished with a screw rod, and the sealing ring district preferably places on the position between first and second charging aperture of screw rod in this case.
In according to melt-kneaded device of the present invention, the downstream that preferably the liquid introducing port is arranged in first charging aperture then and in the section that the length and the diameter ratio (L/D) of machine barrel satisfies following formula: L/D≤2, and below the section that the liquid introducing port extends to second charging aperture satisfies relational expression: L/D 〉=8.
In addition, a preferred embodiment according to melt-kneaded device of the present invention, device has following array structure: the liquid introducing port is that the through hole that machine barrel forms is passed in a near position first charging aperture, and be furnished with a device that is used for feeding under pressure toward through hole, described device is sent to liquid unsaturated silane compound in the described machine barrel.
Fig. 1 (A) is the cross sectional representation according to melt-kneaded device preferred embodiment of the present invention.
Fig. 1 (B) is the cross sectional representation that is used for the melt-kneaded device of Comparative Examples 3.
(producing the method that strengthens the thermoplastic resin composition)
In the method for described production according to enhancing polyolefine resin composition of the present invention, the moulding material that comprises vistanex, solid modifier, solid free radical generating agent, inorganic laminal filter and fibre reinforced materials is directed to be furnished with a plurality ofly along molten resin moving direction embark on journey the melt-kneaded device and the fusion and the kneading there of the charging aperture arranged, strengthens polyolefine resin composition (fusion and mediate product) and provide.
At first will be described in detail the every kind of raw material that is used for production method of the present invention.
＜base resin 〉
At least a there are not enough surperficial compatibilities as the vistanex of basic material itself to what be used as the fiberfill that is blended into the reinforcing material in the resin and inorganic laminal filter in the present invention.More particularly, used in the present invention base resin is a kind of unmodified vistanex, and in other words, this resin is to come from the polymer of monomers that does not have polar group.In this respect, the monomer of nonpolarity group is the monomer of those non-conjugated diene classes.Its reason is that the polyrubber that comes from conjugated diene can be attached on metal and other material.
For this reason, the polymer that does not comprise conjugated diene as the thermoplastic resin of base resin of the present invention, be that diene rubber such as natural rubber (abbreviating " NR " as), isoprene rubber (abbreviating " IR ", suitable-1,4-type polyisoprene as), chloroprene rubber (abbreviate " CR " as; Suitable-1,4 type polychlorobutadiene), butadiene rubber (abbreviates " BR " as; Suitable-1,4 type gathers (1,3-butadiene)), butyl rubber (abbreviates " IIR " as; Isobutylene-isoprene copolymer) and acrylonitrile-butadiene copolymer rubber (abbreviating " NBR " as).
In the present invention as the vistanex of basic material not only comprise come from have 2 to 10, the homopolymers of the rudimentary 1-alkene of preferred 2 to 6 carbon atoms, and in the copolymer that comprises two kinds of 1-olefinic monomers, be included in resin moulded technical field at least and take moulding resin and low-crystalline polymer and the amorphous polymer sold with moulding resin as.In addition, described vistanex also comprises as these the rudimentary 1-alkene of microcomponent and the copolymer of other polar monomer.
＜solid modifier 〉
The solid modifier that is used for the used base resin modification of the present invention is unsaturated carboxylic acid (unsaturated organic acid).Used term " unsaturated carboxylic acid " not only refers to unsaturated carboxylic acid but also refers to its acid anhydrides in this.
The example that can be used for solid modifier of the present invention comprises acrylic acid, methacrylic acid, itaconic acid, maleic acid, fumaric acid, citraconic acid, mesaconic acid, tetrahydrophthalic acid and ENB dioctyl phthalate and these sour acid anhydrides.These solid modifier can at least two kinds be mixed together use.In these solid modifier, particularly preferably be maleic anhydride.
＜solid free radical generating agent 〉
" the solid free radical generating agent " that be used for modifier is grafted to the used base resin of the present invention is also referred to as " (organic) radical initiator ", wherein preferred especially organic peroxide.
The example of this organic peroxide comprises the aliphatic peroxide that belongs to the diperoxy tert-butyl group [two (tert-butyl peroxide)] such as 2, and [another name is called 2,5-two (tert-butyl hydroperoxide) hexane to 5-di-t-butyl peroxide hexane; Trade name: Perhexane], 2,5-di-tert-butyl peroxide hexene [another title: 2,5-two (tert-butyl hydroperoxide) hexene; Trade name: Perhexene]; With 2, and 5-di-t-butyl peroxide hexin [another title: 2,5-two (tert-butyl hydroperoxide) hexin; Trade name: Perhexyne]; With aromatics dibenzoyl peroxide such as dicumyl peroxide (another title: " two cumenyl peroxide ") and 1,3-two (tert-butyl hydroperoxide) benzene (trade name: Percadox).In these organic peroxides, preferably 2,5-two (tert-butyl hydroperoxide) hexane and 1,3-two (tert-butyl hydroperoxide) benzene.
＜unsaturated silane compound 〉
In the present invention, described unsaturated silane compound is used to give described base resin to as the laminal filter of inorganic reinforcement and the compatibility of fiberfill.This class unsaturated silane compound can be the silane compound that comprises at least one connected unsaturated aliphatic group (alkenyl) in molecule, and described unsaturated aliphatic group is selected from for example vinyl, pi-allyl (such as the vinyl methyl), crotyl (such as the 2-methyl ethylene) and 1-methyl ethylene.
The compound that is conventionally used as this alkenyl silane compound has for example alkenyl tri-alkoxy monosilane.The object lesson of described unsaturated silane compound comprises:
Gamma-methyl allyl acyloxypropyl trimethoxy monosilane
[CH 2＝C(CH 3)COO(CH 2) 3Si(OCH 3) 3]、
The gamma-methyl allyl acyloxypropyl triethoxy-silicane
[CH 2＝C(CH 3)COO(CH 2) 3Si(OCH 2CH 3) 3]、
Vinyl trimethoxy monosilane [CH 2=CHSi (OCH 3) 3],
Vinyl triethoxyl monosilane [CH 2=CHSi (OCH 2CH 3) 3], vinyl triacetyl oxygen base monosilane [CH 2=CHSi (OCOCH 3) 3],
Methyl ethylene dimethoxy monosilane [CH 3(CH 2=CH) Si (OCH 3) 2],
Methyl ethylene diethoxy monosilane [CH 3(CH 2=CH) Si (OCH 2CH 3) 2],
Phenyl vinyl dimethoxy monosilane [C 6H 5(CH 2=CH) Si (OCH 3) 2],
Phenyl vinyl diethoxy monosilane [C 6H 5(CH 2=CH) Si (OCH 2CH 3) 2],
Pi-allyl trimethoxy monosilane [CH 2=CHCH 2Si (OCH 3) 2] and
Allyltriethoxysilane [CH 2=CHCH 2Si (OCH 2CH 3) 2].
Wherein, preferably gamma-methyl allyl acyloxypropyl trimethoxy monosilane and gamma-methyl allyl acyloxypropyl triethoxy-silicane.These unsaturated silane compounds can at least two kinds be mixed together use.
＜fibre reinforced materials 〉
In the used reinforcing material of the present invention, described fibre reinforced materials is selected from inorfil and its object lesson comprises various known materials, for example silicate mineral fiber such as glass fibre (mineral wool), quartz fibre, rock wool (rock wool (rock fiber)) or asbestos; Metallic fiber is such as steel wool; Carbon fiber; Brilliant with palpus.These fibre reinforced materials can use separately also can mix use, but the preferred glass fibre that uses, because it has for example good enhancing effect and being easy to get property.As the glass fibre of routine production and sale, the glass filament bundle that cut-out is arranged that can list.
In general, the monofilament that constitutes glass fibre has 5 to 20 microns, preferred 9 to 17 microns diameter and 0.5 to 10 millimeter, preferred 1.5 to 6 millimeters average length.The form that glass fibre can monofilament or the form of bunchy are used.Although from practical perspective general preferred glass fibre (mineral wool) that uses in the present invention among aforesaid various fibre reinforced materials, but for the balance between lightweight characteristic and intensity (specific strength) is in the application such as aircraft and sport car and racing car of most important orientation, and carbon fiber is best fibre reinforced materials.According to various situations, these fibre reinforced materials can use separately, also can two or morely be mixed together use.
In the present invention,, preferably silane coupling agent etc. is applied to the surface of fibre reinforced materials from strengthening the viewpoint of effect, with give described surface to vistanex interface affinity and/or improve this compatibility.The amount that is blended into the aforementioned fibers reinforcing material in the composition generally is set in the level that is not less than composition total weight 10% (weight), and is preferably the 15-40% (weight) of composition total weight.
As aforementioned silane coupling agent available in this, that can list has for example saturated silane compound and a unsaturated silane compound.In these silane compounds, unsaturated silane compound preferably, its preferred example comprises γ-methacryloxypropyl trimethoxy monosilane (unsaturated silane compound 1) and γ-methacryloxypropyl triethoxy-silicane (unsaturated silane compound 2).
＜inorganic laminal filter 〉
In can be used for inorganic reinforcement of the present invention, inorganic laminal filter (sheet reinforcing material) can be for example Powdered mica (muscovite), talcum, agalmatolite and sheet glass.These inorganic laminal filters can be used separately, also can at least two kinds be mixed together use.Suppress effect from the rigidity and the warpage of the moulding article that obtains, mica powder preferably in these inorganic laminal filters.Mica is not limited to specifically a kind of, and it can be suitably to be selected from for example biotite, muscovite and phlogopite.The shape of described inorganic laminal filter is not limited to specifically a kind of, but widely used be that maximum average diameter is 10 to 200 microns and those preferred 10 to 100 microns fillers.
In addition, the length-width ratio of inorganic laminal filter is not specifically limited equally, but by using the generally inorganic laminal filter 10 to 500, in preferred 10 to 100, more preferably 15 to 50 scopes of length-width ratio, can guarantee the characteristic property that composition is required.Described inorganic laminal filter can demonstrate it and strengthen usefulness under the situation of for example silane coupling agent treatment surface of no use, can further improve enhancing usefulness but handle.In enhancing resin combination of the present invention, rigidity and the effect that prevents the moulding article warpage from for example moulding article, the amount of the preferred inorganic laminal filter that is added is not less than 10% (weight) of resin combination weight, and is preferably the 15-50% (weight) of resin combination weight.
In preparation method of the present invention, under the situation of not negative effect required usefulness of the present invention, except above-mentioned material, can also add various additives, such as antioxidant, UV absorbers, antistatic additive, silane coupling agent, pigment and dyestuff toward resin combination; Reinforcing material and filler with non-fibre reinforced materials and inorganic laminal filter.In the present invention, the method for sneaking into these additive components is not limited to specifically a kind of.
＜melt-kneaded device and method of feeding 〉
In the method for producing according to enhancing thermoplastic resin composition of the present invention, this vistanex discussed above, solid modifier, solid free radical generating agent, unsaturated silane coupling agent, inorganic laminal filter and fibre reinforced materials are supplied in the melt-kneaded device with ad hoc structure according to an ad hoc fashion.
Preparation method of the present invention has used a kind of melt-kneaded device, and it comprises first charging aperture of a position that places upstream side; Place second charging aperture in first charging aperture downstream; Place the 3rd charging aperture in second charging aperture downstream; With the liquid introducing port that places just at first charging aperture downstream and second charging aperture upstream side, wherein said charging aperture and introducing port are along the molten resin direction layout of embarking on journey that flows.
Be furnished with described first to the 3rd at described device and select materials mouthful and just place under the situation of liquid introducing port of certain position, the first charging aperture downstream, the melt-kneaded device that is used for the inventive method can be various such devices.Wherein preferably comprise as fusion and mediate the screw extruder etc. of the interior loading screw of base resin.
The melt-kneaded device that is used for the inventive method will be set forth later in more detail.
In the method for the invention, used melt-kneaded device comprises that one is furnished with three along molten resin the embark on journey melt-kneaded extruder barrel of charging aperture of confession the component charging of arranging of method that flows, and also comprises the liquid introducing port of specific location in first charging aperture downstream that separates with first charging aperture and be placed at the upstream side layout of machine barrel.
As the used melt-kneaded device of the present invention, preferably in the melt-kneaded machine barrel, has the screw extruder of built-in screw rod.Described screw rod is used for the base resin of molten state and the additive component of pack into (or supply) are delivered to extruder by machine barrel as the melt-kneaded instrument, simultaneously these components is mediated, and squeezes out the mixture of kneading from the downstream of machine barrel.
The feeder that preferably will be furnished with weigher is installed on each charging aperture of melt-kneaded device, thereby can control the amount of each charging.
Being used for melt-kneaded device of the present invention, particularly preferably be the parallel flow type double screw extruder.
Used screw rod can be the screw rod of any kind in this, such as " full helical type screw rod ", wherein just below first charging aperture the position in (promptly just in its downstream) play its similar whole length the screw thread ditch all arranged; " seal ring-like screw rod ", its centre at full helical type screw rod is furnished with at least one sealing ring; " peg type helical type screw rod ", its middle part at full helical type screw rod are furnished with at least one pin screw channel; The assembly of at least two kinds of aforementioned screw-rod structures; High pressure miniature screw rod and low compression-type screw rod and the screw rod that on any position of same screw rod, all can change compression ratio.These screw rods are selected for use according to purpose fully.
In addition, in melt-kneaded device of the present invention, be used as the preferred embodiment of the screw rod of melt-kneaded instrument, sealing ring be placed in constitute each section that each charging aperture position limits the downstream nearby, promptly place just at the back next charging aperture upstream extremity of a section place.The effect of described sealing ring is by preventing that the component in each section from leaving kneading fully or the compression that this section guaranteed each section before this section finished dealing with.
Not concrete qualification of shape that is used for the machine barrel of melt-kneaded device of the present invention, but from strengthening effect, barrel length (L) that preferably will be from first charging aperture to section the liquid introducing port is set in 2 the level (L/D≤2) that is not more than with the ratio (L/D) of machine barrel internal diameter (D).In addition, extend to the section of second charging aperture at the liquid introducing port, from the section of three charging apertures of second charging aperture to the and the section from the 3rd charging aperture to the machine barrel lower edge, preferred L/D value is set in 8 the level (L/D 〉=8) that is not less than.More preferably all L/D values are set in 10 to 15 scope (wherein L represents the distance of center to center).When use had the extruder of two or more screw rods, the internal diameter of machine barrel (D) was meant the situation corresponding to each screw rod among the L/D.
The liquid introducing port is arranged between first and second charging apertures.Specifically, described liquid introducing port should be arranged in center upstream side between first and second charging apertures and just in the position of the downstream part of first charging aperture.Position of used term " just in the downstream " is meant that the base resin etc. of delivering to extruder by first charging aperture and silane coupling agent by evenly fusion and kneading, reach second charging aperture until them in this.More particularly, the position that for example is arranged of described liquid introducing port satisfy first charging aperture and liquid introducing port apart from the ratio apart from m (s/m) between s and first charging aperture and second charging aperture 1/40 to 1/4, preferred 1/24 to 1/6 also in preferred especially 1/16 to 1/8 the scope.
Described liquid unsaturated silane compound should be reverse in the machine barrel high pressure and depress in the machine barrel of delivering to extruder adding, so the liquid introducing port is furnished with forced feed equipment.This with the equipment of liquid unsaturated silane compound forced feed in the machine barrel in, preferably can guarantee the metering feed pump such as the pressure measurement feed pump of required liquid unsaturated compound amount.The notable attribute of the present invention is to use the melt-kneaded device of being furnished with this liquid introducing port.In other words, only be furnished with a kind of liquid feed system when (it comprises aforesaid liquid introducing port and randomly aforementioned forced feed equipment and the liquid ascending pipe that is connected forced feed equipment and liquid introducing port) when described device, just can reach without difficulty according to the required effect of method of the present invention.
In the method for producing according to enhancing thermoplastic resin composition of the present invention, vistanex, solid modifier and solid free radical generating agent, flaky inorganic filler and fibre reinforced materials are sent in this device by first, second and the 3rd charging aperture of melt-kneaded device respectively, by the liquid introducing port unsaturated silane compound is imported simultaneously, thereby with these component melts and kneading.
In the method for the invention, the amount of every kind of component of described composition is not concrete to be limited, but from the affinity viewpoint of acrylic resin to inorganic reinforcement, amount ranges is generally per 100 weight portion acrylic resins, 0.05 to 5 weight portion, the described solid modifier of preferred 0.1 to 1 weight portion, 0.01 to 0.5 weight portion, preferred 0.05 to 0.2 weight portion solid free radical generating agent.
On the other hand, the amount of fibre reinforced materials and inorganic laminal filter can be according to for example suitably selecting with the required mechanical performance of the moulding article of its production.Yet, when described fibre reinforced materials and inorganic laminal filter respectively be no less than 10% (weight) that strengthens thermoplastic resin composition's gross weight, particularly account for that the amount of described gross weight 15 to 40% (weight) and being no less than strengthens thermoplastic resin composition's gross weight 10% (weight), when the amount that particularly accounts for described gross weight 15 to 50% (weight) is used, method of the present invention can obtain required and significant bridging plug and prevent effect and prevent the effect that screw rod wears away.
The extrusion temperature of operating the resin combination of producing by this melt-kneaded is generally 180 to 300 ℃ and preferred 200 to 280 ℃.
＜melt-kneaded device 〉
Can suitably be used for producing the method that strengthens the thermoplastic resin composition and comprise the base resin fusion that to send into from the one side, the cylindrical machine barrel that simultaneously resin is shifted to the opposite side of machine barrel according to melt-kneaded device of the present invention; Be used for mediating the melt-kneaded equipment that is present in machine barrel of molten resin; Be assemblied in and be used to send into raw-material first to the 3rd charging aperture and liquid introducing port on the machine barrel.
In according to melt-kneaded device of the present invention, described machine barrel, first to the 3rd charging aperture, liquid introducing port and melt-kneaded equipment are those configurations that define together and illustrate in conjunction with preparation method of the present invention.Hereinafter will specifically illustrate in greater detail device of the present invention with reference to accompanying drawing.
Figure 1A is the longitudinal cross-section schematic diagram that shows according to a kind of preferred embodiment of melt-kneaded device of the present invention.Shown in Figure 1A, melt-kneaded device 1 of the present invention is screwe-type xtruder (a parallel flow type double screw extruder).Machine barrel as the body of melt-kneaded device 1 is furnished with charging aperture 12u, 12m and the 12d of a plurality of series connection, and it is along the molten resin direction arrange (being " U → D " direction in Fig. 1) that flows.In this embodiment, described a plurality of charging aperture by the first charging aperture 12u that is positioned at the upstream side of machine barrel, be arranged in the first charging aperture downstream the second charging aperture 12m, be arranged in the downstream of described machine barrel the 3rd charging aperture 12d and being arranged in just then and constitute at the locational liquid introducing port 14 in the first charging aperture 12u downstream.
In this embodiment, the ratio (L/D value) of the internal diameter (D) of length of cylinder (L) and machine barrel 11 is by following setting: the section between the first charging aperture 12u and the liquid introducing port 14 is 1; Section between the liquid introducing port 14 and the second charging aperture 12m is 12; Section between section between the second charging aperture 12m and the 3rd charging aperture 12n and the 3rd charging aperture 12n and the machine barrel top is 13.
Two (mediating-extrude) screw rods 13 are assembled in the aforementioned machine barrel 11, and every screw rod 13 is made of the screw thread 13d of screw thread 13u, the sealing ring 13su that contacts with the downstream of screw thread 13u of the upstream side of described machine barrel, the downstream end of machine barrel that extends to the screw thread 13m in the middle reaches of described machine barrel, the sealing ring 13sm that contacts with screw thread 13m downstream and originate in screw thread 13m downstream from downstream.
Also have, near liquid introducing port (through hole) (just in downstream) downstream of first charging aperture on the machine barrel 11 forms.
Pressurised metered pump 16 links to each other by a liquid ascending pipe 15 with liquid introducing port 14, and pump 16 also links to each other by a feed pipe 17 with the storage tank 18 of storage liquid additive (the particularly unsaturated silane compound in the inventive method).
The liquid additive in the storage tank 16 of being stored in of delivering to machine barrel 11 by the effect of pump 16 is sent to and imports in the material such as molten resin of machine barrel 11 by liquid introducing port 14.
Liquid introducing port 14 is placed in just a position in the first charging aperture 12u downstream.More particularly, liquid introducing port 14 is arranged at a position and this position of leaving the first charging aperture 12u and satisfies following condition: the ratio apart from m apart between s and the first charging aperture 12u and the second charging aperture 12m between the first charging aperture 12u and the liquid introducing port 14 equals 1/12.In this respect, if liquid introducing port 14 is arranged at the place in machine barrel downstream more as in the middle of the first charging aperture 12u and the second charging aperture 12m, then required effect can not be guaranteed by adding unsaturated silane compound.
A kind of preferred embodiment according to melt-kneaded device of the present invention specifically is illustrated with reference to accompanying drawing in the above, but can carry out various modifications to described Design of device under the situation that does not deviate from target spirit of the present invention certainly.
For example, can comprise at least two liquid introducing ports that are used to send into liquid additive that form by described machine barrel 11 according to melt-kneaded device of the present invention.In other words, except the liquid introducing port 14 that just is positioned at the formation of the first charging aperture 12u downstream, can near second charging aperture 12m and/or the 3rd charging aperture 12d, a liquid inlet opening be set.These other liquid introducing port preferred arrangements are on a position in the downstream that just is positioned at the second charging aperture 12m and/or the 3rd charging aperture 12d.In this respect, the liquid introducing port 14 that need not to be arranged in the upstream side of machine barrel is that of a plurality of liquid introducing ports must parts.
Perhaps, can between the first and the 3rd charging aperture, further comprise at least one charging aperture except second charging aperture according to melt-kneaded device of the present invention.Particularly if desired a large amount of inorganic laminal filters is packed into (or adding) in machine barrel, then whole fillers all only can be sent into by second charging aperture sometimes, but the inorganic laminal filter of a part is sent into by second charging aperture, all the other are then sent into by these other charging apertures, obtain good effect thus.
The method and the melt-kneaded device that strengthen the thermoplastic resin composition according to production of the present invention can provide the enhancing resin combination steadily in the long term, it can be used for preparing the moulding article that all has good mechanical performance and good durability under the high and low temperature, has eliminated classification and and the problem of bridging plug and the abrasion problem that is used for fusion and mediates resin equipment such as screw rod such as reinforcing material that the charging aperture at the melt-kneaded device occurs that be easy to simultaneously effectively.
Embodiment
The present invention is illustrated more specifically with reference to the following examples and (if desired) Comparative Examples, but these specific embodiments do not constitute limitation of the invention.
＜evaluation method 〉
(1) evaluation of bridging plug: every melt-kneaded device operates two hours, the frequency of viewed bridging plug during the counting running.
(2) in the evaluation of 80 ℃ of fatigue limits:, in 80 ℃ atmosphere, get the test material of type i and measure the flexural vibrations fatigue characteristic according to the method for ASTM D671-B regulation.From cycle of stress curve determination be defined as described fatigue limit at the stress in 107 whens operation and with it.
(3) in the evaluation of 100 ℃ of following hot strengths:, get No. 1 pull test of JIS and in 100 ℃ of atmosphere, measure its hot strength with dumbbell according to the method for JIS K-7113 regulation.
＜molding raw material 〉
(1) production of resin compound 1: melt flow rate (MFR) [(230 ℃ of the MRF that 99.2% (weight) had 2g/10min; 21.2N)] polypropylene homopolymer, 0.1% (weight) as 2 of antioxidant, 6-BHT, 0.1% (weight) as the calcium stearate, 0.1% (weight) of lubricant as 1 of solid free radical generating agent, 3-two (t-butyl peroxy isopropyl) benzene and 0.5% (weight) fully mixes in a Henschel blender (trade name) as the maleic anhydride of solid modifier, produces resin compound 1.
(2) production of resin compound 2: melt flow rate (MFR) [(230 ℃ of the MRF that 98.7% (weight) had 2g/10min; 21.2N)] polypropylene homopolymer, 0.1% (weight) as 2 of antioxidant, 6-BHT, 0.1% (weight) as the calcium stearate, 0.1% (weight) of lubricant as 1 of solid free radical generating agent, 3-two (t-butyl peroxy isopropyl) benzene, 0.5% (weight) fully mixes in a Henschel blender as the maleic anhydride and 0.5% (weight) of the solid modifier gamma-methyl allyl acyloxypropyl trimethoxy monosilane as unsaturated silane compound, produces resin compound 2.
(3) liquid unsaturated silane compound: use following compounds:
Liquid unsaturated silane compound 1: gamma-methyl allyl acyloxypropyl trimethoxy monosilane;
Liquid unsaturated silane compound 2: gamma-methyl allyl acyloxypropyl triethoxy-silicane.
(4) production of mica powder: used mica powder is the white mica powder with average grain diameter and length-width ratio of 30 of 15 microns in this.
(5) used glass fibre: used glass fibre is those glass fibres with average cut length (average fiber length) of 9 microns fiber diameter and 3 millimeters in this.
Embodiment 1
Use melt-kneaded device (parallel flow type double screw extruder in this embodiment with device 1 same structure shown in Figure 1; Aperture: 45 millimeters).By the way, all ratio: promptly for the section between first and second charging apertures in the melt-kneaded device 1 used in the present embodiment, between the second and the 3rd charging aperture section and the 3rd and the machine barrel top between the L/D of section corresponding " shape of section inner screw " be set at 13 level.In this respect, all be set in a constant value for all sections its " D ", and the length that is worth " L " or each section screw rod be defined as adjacent charging aperture or and the liquid introducing port between the distance of center to center.
Also have, the L/D of the section in described melt-kneaded device 1 between the first charging aperture 12u and the liquid introducing port 14 is arranged on 1 (the L/D ratio of the section between the liquid introducing port 14 and the second charging aperture 12m is L/D=12 simultaneously).
Resin compound 1 with 49.5% (weight), the unsaturated silane compound 1 of 0.5% (weight), 20% (weight) as the mica powder and 30% (weight) of inorganic laminal filter as the glass fibre (GF) of fibre reinforced materials respectively by the first charging aperture 12u, liquid introducing port 14, the second charging aperture 12m and the 3rd charging aperture 12d are sent in this melt-kneaded device, simultaneously their fusions and kneading are formed a kind of product through fusion and kneading, then this product through fusion/kneading is extruded into the enhancing precursor by nozzle and the extrusion neck ring mold (not shown) that is assemblied in the machine barrel end at 250 ℃.The enhancing precursor of extruding is cooled to continuously temperature required by cooling bath, and uses line material cutter to cut then and (granulate; Granulation) becomes pellet (enhancing pellet).
Found that, in the pellet preparation of being carried out that contains reinforcing material, do not observe the bridging plug phenomenon, and the production of described pellet is continuous and stable at all three charging aperture 12u, 12m and 12d.
Resulting enhancing pellet is delivered to the mensuration that forms sample (sample) in the injector and resulting sample is used for its various performances.The result has obtained a good result: be respectively 41MPa and 63MPa 80 ℃ fatigue limits with 100 ℃ hot strength.Below table 1 shown the kind of quality evaluation, used component and consumption and to the result of the evaluation of the described device running of mix stages when mixing (or).
Embodiment 2
Be sent to the amount of mica powder in the described device and glass fibre and use the liquid unsaturated silane compound 2 except setting respectively by the value of table 1 defined by charging aperture 12, use repeats the step of embodiment 1 according to process units of the present invention 1, thereby forms sample (sample) and the sample that obtains is used for the mensuration of its various performances.
The result has obtained a good result: be respectively 34MPa and 41MPa 80 ℃ fatigue limits with 100 ℃ hot strength.Below table 1 shown the kind of quality evaluation, used component and consumption and to the result of the evaluation of the described device running of mix stages when mixing (or).
Comparative Examples 1
Except not sending into any liquid unsaturated silane compound, use the melt-kneaded device identical under identical condition, to repeat the operating procedure of embodiment 1, and obtain a kind of resin combination that contains reinforcing material with embodiment.
Found that the sample made from resultant composition has the hot strength under fatigue limit under 80 ℃ of 25MPa and 43MPa 100 ℃.Its fatigue limit at 80 ℃ is considered to significantly be lower than required level.This is because because the base resin of sample is relatively poor to the interface affinity of the reinforcing material of conduct test composition.Below table 1 listed the kind of these result of the tests, used component and consumption and to the evaluation of the described device running of mix stages when mixing (or).
Comparative Examples 2
Except the liquid unsaturated silane compound is sent in the described device by the first charging aperture 12u with resin compound 1, rather than with described silane compound by just outside the liquid in the first charging aperture 12u downstream is pressed into mouthful 14 chargings, use the melt-kneaded device 1 identical with embodiment 1, repetition embodiment 1 used same operation and condition produced pellet.
But, (per 2 hours 11 times) bridging plug often takes place at the first charging aperture 12u in the operation of described device 1.Be difficult to be fed in the extruder barrel 11 raw material is stable, but force to carry out the operation of described device continuously and make sample.
Found that the sample of making from the pellet that obtains has 80 ℃ of following fatigue limits of 40MPa and 100 ℃ of hot strengths of 48MPa.More particularly, its fatigue limit is acceptable, but its hot strength is far below desired level.Below table 1 listed the kind of these result of the tests, used component and consumption and to the evaluation of the described device running of mix stages when mixing (or).
Comparative Examples 3
Except use has the melt-kneaded device 2 of structure as shown in Figure 2, repeat embodiment 1 all steps and carry out the preparation of described pellet, and prepare sample with described pellet.
Except liquid introducing port 24 between the first charging aperture 12u and the second charging aperture 12m and to the second charging aperture 12m tilts, melt-kneaded device shown in Figure 2 has the structure identical with device shown in Figure 1.In this respect, all architectural features among Fig. 2 same as shown in Figure 1 all have identical reference number, and its details will no longer illustrate.
For device 2 screw rod shape, be located at 8 the section of its ratio L/D between the first charging aperture 22u and liquid introducing port 24 (and between liquid introducing port 24 and the second charging aperture 24m section ratio are located at 5 level).
Found that the sample of making like this has the hot strength under fatigue limit under 80 ℃ of 27MPa and 46MPa 100 ℃.Its fatigue limit under 80 ℃ is more much lower than desired level.This is because the position that unsaturated silane compound adds is inappropriate.Below table 1 listed the kind of these result of the tests, used component and consumption and to the evaluation of the described device running of mix stages when mixing (or).
Table 1
The embodiment numbering According to the screw extruder of being furnished with a plurality of charging apertures and liquid pump of the present invention
First charging aperture (hopper) The first liquid introducing port The second liquid introducing port Second charging aperture (hopper) The 3rd charging aperture (hopper)
Resin compound Unsaturated silane compound Laminal filter Fibre reinforced materials
Kind [amount % (weight)] Kind [amount % (weight)] Kind [amount % (weight)] Kind [amount % (weight)] Kind [amount % (weight)]
Embodiment 1 1(40.5) 1(0.5) --(--) Mica powder (20) GF(30)
Embodiment 2 2(64.5) 2(0.5) --(--) Mica powder (25) GF(10)
Comparative Examples 1 1(50) --(--) --(--) Mica powder (20) GF(30)
Comparative Examples 2 2(50) --(--) --(--) Mica powder (20) GF(30)
Comparative Examples 3 3(49.5) --(--) 1(0.5) Mica powder (20) GF(30)
Table 1 (continuing)
The embodiment numbering The result of mass change
The appearance of bridging plug Fatigue limit under 80 ℃ Hot strength under 100 ℃
A situation arises MPa MPa
Embodiment 1 Do not have 41 63
Embodiment 2 Do not have 34 41
Comparative Examples 1 Do not have 25 43
Comparative Examples 2 High-frequency 40 48
Comparative Examples 3 Do not have 27 46
Unsaturated silane compound 1: gamma-methyl allyl acyloxypropyl trimethoxy monosilane;
Unsaturated silane compound 2: gamma-methyl allyl acyloxypropyl triethoxy-silicane;
GF: glass fibre

Claims (6)

1. the use melt-kneaded device production of being furnished with a plurality of charging apertures that are arranged in rows along the molten resin moving direction strengthens thermoplastic resin composition's method, and it comprises the following steps:
Vistanex, solid modifier and solid-state free radical generating agent is reinforced by first charging aperture that is positioned at the upstream side of extruder;
Inorganic laminal filter is reinforced by second charging aperture that is positioned at first charging aperture downstream;
Fibre reinforced materials is reinforced by the 3rd charging aperture that is positioned at second charging aperture downstream; With
With unsaturated silane compound by being positioned at first charging aperture downstream and feeding in raw material at the liquid introducing port that satisfies section concern L/D≤2, wherein L represents the length of machine barrel, D represents the internal diameter of machine barrel, and the section from described liquid introducing port to second charging aperture is satisfied to concern L/D 〉=8, and according to this with the component melts and the kneading that are added.
2. the production that proposes according to claim 1 strengthens thermoplastic resin composition's method, and wherein said inorganic laminal filter is a mica powder.
3. strengthen thermoplastic resin composition's method according to claim 1 or 2 productions that propose, wherein said fibre reinforced materials is be selected from glass fibre and carbon fiber at least a.
4. melt-kneaded device, it comprises:
Be used for fusion by the base resin of one side importing and the cylindrical machine barrel that simultaneously described resin is moved to opposite side;
Be used for fusion and the instrument of mediating the molten resin that holds at described machine barrel;
Embark on journey along the molten resin moving direction and to be arranged in first to the 3rd charging aperture that is used to import raw material on the machine barrel; Be positioned at the first charging aperture downstream and at the liquid introducing port that satisfies section concern L/D≤2, wherein L represents the length of machine barrel, D represents the internal diameter of machine barrel, and section satisfied L/D 〉=8 that concern from described liquid introducing port to second charging aperture.
5. according to the melt-kneaded device of claim 4 proposition, wherein said melt-kneaded instrument is a screw rod of being furnished with the sealing ring district between first and second charging apertures.
6. according to claim 4 or the 5 melt-kneaded devices that propose, wherein said liquid introducing port is one and passes the hole that described machine barrel forms and be positioned near first charging aperture, and described through hole is furnished with pressurization the liquid unsaturated silane compound is sent to press-in device in the described machine barrel by it.
CNB001180266A 1999-06-04 2000-06-02 Method for prodcing reinforced thermoplastic resin composite, and melt kneading means Expired - Fee Related CN1229210C (en)

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